Monroe County, Illinois

Monroe County: County in Illinois, United States

About

Monroe County is a county located in the U.S. state of Illinois. As of the 2010 census, the population was 32,957 and a population density of 32 people per km². After 10 years in 2020 county had an estimated population of 34,739 inhabitants. Its county seat is Waterloo. The county was created 208 years ago in 1816.

Monroe County locator map
Location of Monroe County on Illinois map.

Quick Facts about Monroe County

Population : 34,739 (2020)
Country : United States of America
State : Illinois (United States)
Different from : Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County, Monroe County
Area : 1030 km2
Water as percent of area : 3.3%
Land as percent of area : 96.7%
Named for : James Monroe
Capital : Waterloo
Establishment : January 01, 1816
Time Zone : America/Chicago
Local time : 02:37:18 (19th April 2024)
Density : 34 Pop. per km² as of 2020
Population growth : 5.13% (2010-2020)
Map of Illinois highlighting Monroe County locator map image
Map of Illinois highlighting Monroe County
Map of Illinois highlighting Monroe County locator map image
Map of Illinois highlighting Monroe County locator map image

Geography

Monroe County is located at 38°16'43"N 90°10'39"W (38.2786500, -90.1773800). It has 4 neighbors: Randolph County, Saint Clair County, Jefferson County and Sainte Genevieve County.

Monroe County map

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The largest city of Monroe County is Columbia with a population of 10,627. Other cities include, Waterloo population 10,536, Valmeyer population 1,238 and Maeystown population 162. See all Monroe County cities & populated places.

Monroe County Populated Places

Cities, towns, neighborhoods & other populated places in Monroe County.

City Name Population Title
Columbia 10,627 City in Illinois, United States
Waterloo 10,536 City in Illinois
Valmeyer 1,238 Human settlement in Illinois, United States of America
Hecker 474 Village in United States of America
Maeystown 162 Human settlement in United States of America
Fults 28 Village in United States of America

Monroe County has 4 neighbours.

  • Randolph County county in Illinois, United States
  • Saint Clair County The County of St. Clair is the oldest county in the U. S. Illinois state; the Mississippi River, bordering the U, forms its western boundary. S. Missouri State. In southern Illinois, it is part of the Metro East. It had a population of 270,056 according to the 2010 United States Census, making it the eighth-most populous county in Illinois and the most populous in the state's southern part. Its seat in the county is Belleville.
  • Jefferson County county in Missouri, United States
  • Sainte Genevieve County county in Missouri, United States

Demographics

The population of Monroe County increased by 5.13% in 10 years.

Year Population % Change Method
2010 32,957 - census
2011 33,214 0.77% estimation process
2012 33,260 0.14% estimation process
2013 33,457 0.59% estimation process
2014 33,540 0.25% estimation process
2015 33,739 0.59% estimation process
2016 33,913 0.51% estimation process
2017 34,179 0.78% estimation process
2018 34,373 0.56% estimation process
2019 34,637 0.76% estimation process
2020 34,739 0.29% estimation process

Comitatul Monroe, Comte de Monroe, Comté de Monroe, Condado de Monroe, Condado han Monroe, Contea di Monroe, Hrabstwo Monroe, Monro, Monro srjan, Monroe, Monroe Comitatus, Monroe Kun, Monroe Kūn, Monroe konderria, Monroe megye, Okrug Monro, Quan Monroe, Quận Monroe, manarau ka'unti, men luo xian, monro jun, mqatʿt mwnrw, shhrstan mwnrw aylynwy, Монро, Округ Монро, Մոնրո շրջան, شهرستان مونرو، ایلینوی, مقاطعة مونرو, منرو کاؤنٹی، الینوۓ, مونرو کاؤنٹی، الینوائے, মনরৌ কাউন্টি, モンロー郡, 門羅縣

People born in Monroe County (4)

People born in Monroe County, including politician Levi Scott, U.S. Representative from Illinois William Ralls Morrison, diplomat and lawyer Lansing B. Mizner, .

List

  • Timothy William Stanton (American geologist and paleontologist (1860-1953)) he was born in 21/09/1860

Other places with the same name (17)

Illinois Other Counties (more counties)

County Name Population Title
Cook County 5,108,284 County in Illinois, United States
Chicago 2,677,643 The third most populous city in the United States and the center of the Chicago metropolitan area.
DuPage County 917,481 County in Illinois, United States
Lake County 693,593 County in Oregon, United States
Will County 688,726 County in Illinois, United States
Kane County 531,010 County in southern Utah, United States
McHenry County 305,888 County in Illinois, United States
Winnebago County 281,295 County in Illinois, United States
Madison County 262,635 County in Montana, United States
Saint Clair County 258,046 The County of St.
Champaign County 209,192 County in Illinois, United States
Aurora 196,383 The second most populous city in Illinois.
Sangamon County 193,882 County in Illinois, United States
Peoria County 177,652 County in Illinois, United States of America
McLean County 171,256 County in North Dakota, United States
Naperville 147,986 The second most populous city in Illinois.